update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ImGroupServiceImpl.java

@@ -202,6 +202,7 @@ public class ImGroupServiceImpl extends BaseServiceImpl<String, ImGroup> impleme
     @Override
 	@Transactional(rollbackFor = Exception.class)
     public void updateImGroup(ImGroup imGroup) {
+		imGroup.setMemberNum(null);
 		imGroupDao.update(imGroup);
 		imFeignService.groupUpdate(new GroupModel(imGroup.getId(),null,imGroup.getName()));
     }